Organize the information on your resume in accordance with your
desired impact on the reader. This rule should govern which information
you present and the order in which you present it.
That's why you always list your work experience in REVERSE chronological
order -- because your most important and applicable jobs are likely to be the most recent.
You don't want the first thing that the employer sees to be bagboy at
the supermarket or waitress if you've had more important and relevant jobs.